Guest Column | October 1, 2019

New Bill Aims To Drive Insulin Price Reductions

By James Shehan, Lowenstein Sandler


In late July, a bipartisan group of four senators unveiled the Insulin Price Reduction Act (IPRA), a bill1 intended to make insulin cheaper for patients. The bill proposes to drive price reductions by drug companies by providing them with incentives to roll back the list price of insulin products to 2006 levels. Specifically, IPRA would make it illegal for pharmacy benefit managers (PBMs) and insurers to recover rebates from manufacturers that reduce the prices they charge wholesalers for insulin to those 2006 levels. IPRA also would require PBMs and insurers to pass on those lower prices to patients. In addition, the bill requires PBMs and insurers to waive the deductible for insulin products that meet the price-reduction requirements.

The rising cost of drugs has been a prominent issue in the United States for decades. Both major political parties have made efforts to reduce prices a prominent part of their platforms, and almost every candidate in the 2020 presidential race has a plan for doing so. There are literally thousands of media articles and pieces every year about high drug prices. And there is one drug that in the past few years has come to symbolize the entire problem of high drug prices in the United States — insulin.

Insulin is a naturally occurring hormone that is used to treat diabetes, a disease that is characterized by an excess of glucose (a type of sugar) in the blood. Millions of Americans suffer from diabetes, with about 1.25 million having type 1 diabetes, a disorder in which the immune system attacks the pancreas and destroys the body’s ability to produce insulin, typically, but not always, in childhood. People with type 1 diabetes must take insulin in order to survive. Another 30 million Americans have type 2 diabetes, a type of diabetes in which the body’s mechanism for producing and using insulin malfunctions. Many people with type 2 diabetes also take daily injections of insulin.

Between 2002 and 2013, insulin list prices nearly tripled.2 Then in the four years between 2012 and 2016, the average list price of insulin nearly doubled.3 For type 1 patients, it is estimated that their annual expenditures on insulin nearly doubled from 2012 to 2016, increasing from $2,900 to $5,700.4

These price increases and their impact on patients repeatedly have been brought to the public’s attention. The three major insulin makers (Novo Nordisk, Sanofi, and Eli Lilly), PBMs, and insurers have been called before Congress to testify. Sen. Bernie Sanders (D-Vt.) participated in a well-publicized insulin-buying expedition to Canada. There have been public protests outside the headquarters of insulin makers. And there have been numerous articles documenting the hardships that price increases have caused patients, including reports of deaths attributed to high prices.5

While insulin makers and PBMs/insurers disagree over who is primarily responsible for these price increases, it is clear that the very large rebates that insulin makers pay to PBMs and insurers play a significant role. Some recent research suggests that, because of rebates, insulin list prices are growing at significantly faster rates than the net prices realized by the insulin makers, meaning that PBMs and insurers are benefiting more from the price increases than insulin manufacturers are.6 This research also suggests that rebates drive list price increases because rebates are based on a percentage of the list price. As PBMs and insurers ask insulin makers for a greater percentage rebate off list prices, it creates incentives for manufacturers to increase list prices to ever higher levels simply to achieve the same net price.

IPRA will attempt to break this cycle of price increases in a novel way, by creating a new insulin pricing model. IPRA will start to do this by designating a class of “certified insulins.” An insulin can become certified if, by Sept. 30, 2020, a manufacturer submits information to the Department of Health and Human Services (HHS) that demonstrates that the list price (wholesale acquisition cost, or WAC) that it will charge healthcare plans for the product for the 2022 plan year is no higher than it was on July 1, 2006. Insulin products that did not exist in 2006 can become certified if manufacturers set their WAC no higher than the average weighted list price of a group of competing insulin products. To remain certified in later years, price increases must remain at or below the rise in the medical care component of the consumer price index.

For certified insulins, PBMs and insurers are prohibited from receiving from manufacturers “rebate, reduction in price, or other remuneration.” Exceptions are made for price reductions that are disclosed to patients at the time of purchase and for administrative services fees paid to PBMs if such fees are made transparent to insurers and health plans. These rebate restrictions would apply to all private insurance plans and Medicare Part D plans.

IPRA contains several mechanisms to ensure that insurers and PBMs make certified insulins available to patients. First, the bill prohibits PBMs and insurers from collecting deductibles from patients who purchase certified insulins. Second, it requires insurers and PBMs to retain certified insulins on drug formularies for at least two years. Third, it prevents insurers and PBMs from tightening for at least two years three key methods used by them to control drug utilization by patients — prior authorization, step therapy, and cost-sharing. As with the prohibition on rebates, these mechanisms would apply to all private insurance plans and Medicare Part D plans.

IPRA also would reduce the Medicaid rebates that drug manufacturers pay on certified insulins by tying the rebate calculation formula to the lower prices.

IPRA does not draw any distinctions between brand name and generic insulins, so any insulin on the market could avoid paying rebates by rolling back prices. Note that as a factual matter, there currently are no generic insulins, although there are some copycat branded versions, such as Lilly’s Basaglar, that contain the same insulin molecule as older brand name insulins. The FDA has historically regulated insulin as a drug rather than a biologic, so these copycat branded versions have been approved as 505(b)(2) NDAs.7 In March 2020, pursuant to a transition provision of the 2010 law that created biosimilars, all insulins will become regulated as biologics. Thereafter, the biosimilar route will be available for new insulin products.

As for enforcement, IPRA authorizes HHS to penalize manufacturers for submitting false data on certified insulins, setting fines at twice the amount a manufacturer paid in Medicaid insulin rebates in 2018 or “an alternative amount to be determined by the Secretary.”

Sen. Jeanne Shaheen (D-N.H.) is the primary sponsor of the bill, with Sens. Susan Collins (R-Maine), Tom Carper (D-Del.), and Kevin Cramer (R-N.D.) serving as co-sponsors. The sponsors estimate that IPRA would trigger a more than 75 percent decrease in insulin prices compared to what would otherwise be the price after 2020.8

IPRA has been endorsed by the Juvenile Diabetes Research Foundation and the American Diabetes Association. Pharmaceutical companies, PBMs, and insurers have not taken any public position on it. It seems fairly clear that PBMs and insurers would oppose it because it would reduce their income significantly. For insulin makers, the impact would be less, but still likely enough to cause them to oppose IPRA.

The bill has not yet been introduced, and prospects for its passage are unclear.


  1. Available at
  2. Hua, Xinyang and Carvalho, Natalie, et al., “Expenditures and Prices of Antihyperglycemic Medications in the United States, 2002-2013,” Journal of the American Medical Association, April 5, 2016. Available at
  3. Biniek, Jean Fuglesten and Johnson, William, “Spending on Individuals with Type 1 Diabetes and the Role of Rapidly Increasing Insulin Prices,” Health Care Cost Institute, January 21, 2019. Available at
  4. T1 International website, available at
  5. Hall, Ellie, “Turning 26 Is A Potential Death Sentence For People With Type 1 Diabetes In America,” BuzzFeed News, July 21, 2019, available at; Olivo, Antonio, “He lost his insurance and turned to a cheaper form of insulin. It was a fatal decision,” The Washington Post, Aug. 3, 2019, available at
  6. Cefalu, William et al., “Insulin Access and Affordability Working Group: Conclusions and Recommendations,” Diabetes Care, June 2018. Available at
  7. A 505(b)(2) new drug application (NDA) is a type of hybrid application that falls in between a traditional full NDA and the abbreviated new drug application (ANDA) used by generic drugs. A 505(b)(2) application contains full reports of clinical investigations of safety and effectiveness, but where at least some of the information required for approval comes from studies not conducted by or for the applicant and for which the applicant has not obtained a right of reference. 505(b)(2) applications are often used for things like new routes of administration or new dosages of drugs that are already approved. The 505(b)(2) approval path can be much less expensive and much faster route to market compared to a traditional full NDA.
  8. Office of Sen. Shaheen, Press Release, July 22, 2019, available at

About The Author:

James Shehan is senior counsel and chair of the FDA Regulatory Practice at Lowenstein Sandler. A seasoned health care executive and lawyer, he is well-versed in complex regulatory and commercial issues related to drug development, life cycle management, compliance matters, internal investigations, and transactions. Shehan’s pharmaceutical and healthcare industry expertise includes mergers and acquisitions, licensing, litigation, intellectual property, securities, and corporate governance, as well as regulatory issues. Known for his deep knowledge of FDA regulatory matters, he is a trusted advisor on the development and commercialization of pharmaceutical products, medical devices, food products, and biosimilars. He can be reached at